Table 1.

Synonymous (π_S) and nonsynonymous (π_N) nucleotide diversity (± S.E.) in pvama-1 sequences (N = 231) from Thailand.

Region	No. codons	πS	πN
5′ remainder	42	0.0046 ± 0.0048	0.0050 ± 0.0035
Domain I	206	0.0193 ± 0.0071	0.0127 ± 0.0034
Domain II
Loop	42	0.0000 ± 0.0000a	0.0001 ± 0.0001b
Remainder	95	0.0100 ± 0.0061	0.0105 ± 0.0042
All	137	0.0071 ± 0.0044	0.0072 ± 0.0028
Domain III	102	0.0000 ± 0.0000a	0.0016 ± 0.0010b
3′ remainder	75	0.0000 ± 0.0000a	0.0000 ± 0.0000b
All	562	0.0091 ± 0.0027	0.0071 ± 0.0015

Z-tests of the hypothesis that π_S or π_N equals the corresponding value in Domain I:

^aP < 0.01

^bp < 0.001.